Progress and perspectives on composite laser ceramics: A review

Tian, Feng; Ikesue, Akio; Li, Jiang

doi:10.1016/j.jeurceramsoc.2021.12.061

Cited by 36 publications

(17 citation statements)

References 154 publications

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“…As a kind of new and developing material, transparent ceramics attracted much attention and paramagnetic MO ceramics possess most of the excellent properties of MO crystals [87][88][89][90][91][92][93]. The Verdet constant, thermal conductivity, thermo-optical properties and laser damage threshold of MO ceramics are almost equal to that of the crystals with the same composition.…”

Section: Magneto-optical Materials For Faraday Isolatorsmentioning

confidence: 99%

A review on magneto-optical ceramics for Faraday isolators

Zhang¹,

Hu²,

Snetkov³

et al. 2023

Journal of Advanced Ceramics

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As a promising magneto-optical material applied in Faraday isolators, magneto-optical ceramics possess excellent comprehensive properties and have attracted much attention these years. Herein, we review the fabrication and properties of magneto-optical ceramics including garnet, sesquioxide, and A2B2O7ceramics. Some of the ceramics have been proved to possess applicable performance, while further studies are still needed for most of the magneto-optical ceramics. Aiming at the application for isolators, the research status, existing problems, and development trends of magneto-optical ceramics are shown and discussed in this review.

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Section: Magneto-optical Materials For Faraday Isolatorsmentioning

confidence: 99%

A review on magneto-optical ceramics for Faraday isolators

Zhang¹,

Hu²,

Snetkov³

et al. 2023

Journal of Advanced Ceramics

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show abstract

“…Among them, the design of appropriate composite structure laser gain medium can improve the thermal management capability of laser gain medium, so as to improve the power, efficiency, and beam quality of laser without increasing the volume and complexity of the laser. Therefore, research on gain media with composite structure has developed rapidly in recent years 9,10 …”

Section: Introductionmentioning

confidence: 99%

“…In another approach, Li et al 9 . used a double‐concentration gradient doping YAG/Nd:YAG/YAG ceramic slab as a gain media and realized a laser output of 7.08 kW.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, research on gain media with composite structure has developed rapidly in recent years. 9,10 When end-pumped, it is difficult for uniform gain media to fully absorb the pump light, because the absorption efficiency decreases from both ends to the center, and the center toward the length direction of the gain medium fails to achieve sufficient pump, which will limit the total energy storage. 11 With the gradient doping structure, the laser gain medium can be fully pumped, improving the energy storage density and total energy storage in its central area.…”

Section: Introductionmentioning

confidence: 99%

“…In another approach, Li et al 9 used a doubleconcentration gradient doping YAG/Nd:YAG/YAG ceramic slab as a gain media and realized a laser output of 7.08 kW. At that time, the optical-to-optical conversion efficiency was as high as 39.2%, and the depolarization of one-way transmission was about 3.2%.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication and properties of multistage gradient doping Yb:YAG laser ceramics

et al. 2022

Self Cite

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In order to fully pump and smoothen the temperature gradient of the gain medium, multistage gradient doping Yb:YAG laser ceramics were designed. The composite green bodies were fabricated by tape casting, and multistage gradient doping Yb:YAG ceramics with high optical quality were prepared by vacuum sintering and hot isostatic pressing. For samples pre‐sintered at 1740°C for 30 h and then HIP‐ed at 1700°C for 3 h in argon at 200 MPa, the in‐line transmission values at 1100 nm of YAG, 0.6 at.%Yb:YAG, and 1.5 at.%Yb:YAG ceramics were found to be 83.9%, 84.1%, and 83.3%, respectively. Finally, the 940 nm laser diode was used as the pump source to realize the 1030 nm laser output of multistage gradient doping Yb:YAG ceramic slab with a total energy of 3.43 J. The corresponding optical‐to‐optical conversion and slope efficiencies were 30% and 45%.

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Simplified Single‐Step Fabrication of Composite Transparent Ceramics

Ratzker,

Mottye,

Kalabukhov

et al. 2024

Adv Eng Mater

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Composite transparent ceramics offer various advantages over monolithic parts in many photonic applications. Typically, the formation of multicomponent composites requires elaborate processes that involve multiple steps of green body preparation and densification. This study presents a straightforward single‐step fabrication method for composite transparent ceramics using spark plasma sintering (SPS). The method utilizes customized compaction tools that enable specific powder arrangements within the graphite die, resulting in a configured green body can be directly densified. The versatile yet simple process was demonstrated for various composite designs, primarily comprising Nd3+:YAG and undoped YAG. The high transparency and precision of these composite ceramics render them suitable for prospective optical components such as high‐power lasers and phosphors. Overall, the proposed method applies to multicomponent functional ceramics and potentially any combination of sinterable materials with similar densification behavior and thermal expansion coefficients.This article is protected by copyright. All rights reserved.

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Progress and perspectives on composite laser ceramics: A review

Cited by 36 publications

References 154 publications

A review on magneto-optical ceramics for Faraday isolators

A review on magneto-optical ceramics for Faraday isolators

Fabrication and properties of multistage gradient doping Yb:YAG laser ceramics

Simplified Single‐Step Fabrication of Composite Transparent Ceramics

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